Hi all,
I wonder if anyone can point me in the right direction, I'm trying to read to scio pin of a tms3705, the protocal is one start bit high, one stop bit low and no parity. Im using a pic 16f818 with 4mhz internal osc, tmr1 with a 1/2 prescale. Firstly does anyone know if the internal osc is accurate enough for what Im trying to do, has anyone used the tms3705?
The transponder I'm trying to read is iso 11784/11785 compliant and should send a start byte of 01111110 followed by the data bytes.
Here is my bit of code, any comments/help would be welcome;

Well I got it working! Had alot of things wrong, which I've now sorted out. The interal osc seems to work at room temp, but I think its wise to use a crystall.
I know its frustrating to find a unresolved post so here is my code, any comments welcome;